public function leftJoinTranslation($tableName, $culture = null)
{
$culture = $culture !== null ? $culture : opDoctrineRecord::getDefaultCulture();
$fallbackCulture = sfConfig::get('sf_default_culture');
if ($culture === $fallbackCulture) {
return $this->leftJoin($tableName . '.Translation t WITH t.lang = ?', $culture);
}
return $this->leftJoin($tableName . '.Translation t WITH t.lang IN (?, ?)', array($culture, $fallbackCulture));
}
